__HYPERCALL_ARG3REG   99 arch/x86/include/asm/xen/hypercall.h #define __HYPERCALL_ARG3REG	"edx"
__HYPERCALL_ARG3REG  106 arch/x86/include/asm/xen/hypercall.h #define __HYPERCALL_ARG3REG	"rdx"